How to Fix CPU Cores Stuck at Low Frequency (Throttled on Boot) on the Radxa Dragon Q8B
Causes Missing default thermal trip in early kernel device trees — The Dragon Q8B's SC8280XP device tree originally shipped without a fallback thermal...
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Radxa
Radxa Dragon Q8B
Edge AI, Robotics, AIoT, Edge Servers, Intelligent Gateways, Embedded Development, NAS
Overview
The Radxa Dragon Q8B is a flagship edge AI single board computer built on the Qualcomm Snapdragon 8cx Gen 3 (SC8280XP) 5nm compute platform, combining an octa-core Kryo CPU, Adreno 690 GPU, and Qualcomm AI Engine delivering up to 29+ TOPS for on-device AI inference. It features triple 4K@120 display output, dual 2.5GbE with AVB/TSN real-time networking, up to 32GB LPDDR4X RAM, and extensive storage options including dual M.2 NVMe slots and UFS 3.1. Unveiled at the Radxa + Qualcomm developer day on May 30, 2026, it targets edge AI, robotics, intelligent gateways, edge servers, and industrial embedded applications with support for Linux and Windows.
Key Highlights
- Qualcomm Snapdragon 8cx Gen 3 octa-core (4x 3.0 GHz Kryo Prime) with Adreno 690 GPU and Qualcomm AI Engine up to 29+ TOPS — flagship-class edge AI compute
- Triple 4K@120 display output via HDMI 2.1 FRL and dual USB-C DisplayPort 1.4 Alt Mode, with 4K120 hardware decode and 4K60 encode
- Dual 2.5GbE ports with AVB/TSN deterministic networking (QPS615 bridge IC) plus M.2 E-Key slot for Wi-Fi 6E/7 wireless modules
- Up to 32GB LPDDR4X-4266 RAM with flexible storage: dual M.2 2280 NVMe (PCIe Gen3 x4/x2), UFS 3.1 module, and microSD
- Raspberry Pi-compatible 40-pin GPIO header and 16-pin PCIe FFC connector, with multi-OS support including Windows and mainstream Linux distros
Video
Technical Specifications
| Brand | Radxa |
|---|---|
| Model | Radxa Dragon Q8B |
| Processor (CPU) | Qualcomm Snapdragon 8cx Gen 3 (SC8280XP, 5nm) — 4x Kryo Prime @ 3.0 GHz + 4x Kryo Gold @ 2.4 GHz, octa-core 64-bit |
| Graphics (GPU) | Qualcomm Adreno 690 (2.7 TFLOPS FP32, DirectX 12 / DirectML support) |
| Memory (RAM) | Up to 32GB LPDDR4X @ 4266 MT/s (128-bit, 8x 16-bit channels) |
| Storage | 1x microSD card slot, 1x UFS module connector (UFS 3.1 Gear 4 x2), 2x M.2 2280 M-Key NVMe slots (PCIe 3.0 x4 + PCIe 3.0 x2) |
| Ports & I/O | 2x USB 3.2 Gen 2 Type-C (DP Alt Mode) 2x USB 3.2 Gen 2 Type-A 2x USB 2.0 Type-A 1x HDMI 2.1 (4K@120) 2x 2.5GbE RJ45 1x 3.5mm Audio Jack 1x microSD Card Slot 1x USB-C PD (20V input) 1x M.2 E-Key 2230 (Wi-Fi/BT) 2x M.2 M-Key 2280 (PCIe 3.0) 1x 40-Pin GPIO 1x 16-Pin PCIe FFC |
| Connectivity | Wi-Fi 6E/7 (via M.2 E-Key 2230 module), Bluetooth 5.3 (via M.2 E-Key 2230 module) |
| Operating System | Radxa OS (Debian-based), Ubuntu, Armbian, Arch Linux, NixOS, Debian, Windows |
| Dimensions | 100 x 75 mm |
Troubleshooting
Fix Guides for the Radxa Dragon Q8B
Step-by-step fixes for common issues with this gadget
How to Fix UFS Module Random Reboots, Freezes, and Slow Speeds on the Radxa Dragon Q8B
Causes UFS driver (ufshcd-qcom) PM and hibern8 errors on the Dragon platform — Dragon-series owners who boot Radxa OS from a UFS 3.1 module reported a...
How to Fix Wi-Fi / Bluetooth Module Not Detected on the Radxa Dragon Q8B
Causes The M.2 E-Key slot is not wired the way other boards' slots are — The Dragon Q8B's M.2 E-Key 2230 slot is a PCIe Gen3 x1 interface, not an SDIO...